References:

• The Challenge of Hunger 2008, International Food Policy Research Institute, October 2008
• Malthus Redux: Is Doomsday Upon Us, Again?  New York Times, 2008
• Pimentel, D; Pimentel, M.  Sustainability of Meat-Based and Plant-Based Diets and the Environment. Department of Ecology and Evolutionary Biology, Cornell University.  September 2003.
• Soaring Food Prices and Action Needed.  Press Conference by Dr. Jacques Diouf, Director-General, The Food and Agriculture Organization of the United Nations (FAO),  December 2007
• Soaring Food Prices: The Need For International Action.  FAO, June 2008
• Livestock’s Long Shadow.  FAO, November 2006
• FAOSTAT, FAO. 
• Food Supply Market for the United States, United States Market Profile
• Agriculture and the Animal Feed Industry
• Environmental Degradation Triggering Tensions and Conflict in Sudan.  United Nations Environment Program (UNEP), June 2007. 
• Sudan: Post-Conflict Environmental Assessment.  UNEP, 2007.
• Gold, M.  The Global Benefits of Eating Less Meat.  Compassion in World Farming Trust, 2004